“There are a few combat sequences that achieve a grim, brutal grandeur, notably an early engagement in which the Spartans, hunkered behind their shields, push back against a Persian line, forcing enemy soldiers off a cliff into the water. The big idea, spelled out over and over in voice-over and dialogue in case the action is too subtle, is that the free, manly men of Sparta fight harder and more valiantly than the enslaved masses under Xerxes’ command”….. <More>